AirHint found the following cheapest return flights from Zagreb (ZAG) to Riga (RIX) in December 2025 (see full year).
Return flights
| 01 Dec - 09 Dec | LOT | ||
| 01 Dec - 08 Dec | LOT | ||
| 10 Dec - 13 Dec | Lufthansa | ||
| 21 Dec - 26 Dec | LOT | ||
| 27 Dec - 10 Jan | Ryanair |
Also check the deals for one-way flights from Zagreb to Riga in December.
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